Which of the following is a reason why we may NOT find a significant difference between two groups?
A) The sample size was too small.
B) The true mean difference between the groups was too small.
C) The variability between the groups was too large.
D) all of the above

Question

Quizplus · Accepted Answer

All of the listed options are reasons why a significant difference between two groups may not be found. A small sample size can lead to insufficient statistical power to detect a difference. A small true mean difference means the actual difference between the groups is minimal, making it harder to detect statistically. Large variability within the groups increases the overlap between the groups, making it harder to find significant differences.

Which of the Following Is a Reason Why We May